package com.yangchuang.openpicture.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.yangchuang.openpicture.constant.RedisConstants;
import com.yangchuang.openpicture.mapper.UserFansMapper;
import com.yangchuang.openpicture.pojo.UserFans;
import com.yangchuang.openpicture.service.UserFansService;
import com.yangchuang.openpicture.service.UserStatisticsService;
import com.yangchuang.openpicture.util.RedisUtils;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.time.LocalDateTime;
import java.util.List;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

/**
 * 用户粉丝服务实现类
 * <p>
 * 该服务负责处理用户关注和粉丝相关的功能，包括关注用户、取消关注、获取关注列表、获取粉丝列表等。
 * 使用Redis作为缓存层，提高性能，并定期同步到MySQL数据库。
 *
 * @author naiyi
 * @version 1.0
 * @since 2025-09-01
 */
@Slf4j
@Service
@RequiredArgsConstructor
public class UserFansServiceImpl extends ServiceImpl<UserFansMapper, UserFans> implements UserFansService {

    private final RedisUtils redisUtils;
    private final UserStatisticsService userStatisticsService;

    @Override
    public Integer followUser(Long userId, Long followUserId) {
        return null;
    }

    @Override
    public Integer unfollowUser(Long userId, Long followUserId) {
        return null;
    }

    @Override
    public Boolean isFollowing(Long userId, Long followUserId) {
        return null;
    }

    @Override
    public List<Long> getFollowingList(Long userId) {
        return null;
    }

    @Override
    public List<Long> getFansList(Long userId) {
        return null;
    }

    @Override
    public Long getFollowingCount(Long userId) {
        return null;
    }

    @Override
    public Long getFansCount(Long userId) {
        return null;
    }
}
